| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui; |
| |
| /** |
| * Interface for listening to perspective lifecycle events. |
| * <p> |
| * This interface may be implemented by clients. |
| * </p> |
| * |
| * @see IPageService#addPerspectiveListener(IPerspectiveListener) |
| * @see PerspectiveAdapter |
| */ |
| public interface IPerspectiveListener { |
| /** |
| * Notifies this listener that a perspective in the given page has been |
| * activated. |
| * |
| * @param page the page containing the activated perspective |
| * @param perspective the perspective descriptor that was activated |
| * @see IWorkbenchPage#setPerspective |
| */ |
| void perspectiveActivated(IWorkbenchPage page, IPerspectiveDescriptor perspective); |
| |
| /** |
| * Notifies this listener that a perspective has changed in some way (for |
| * example, editor area hidden, perspective reset, view show/hide, editor |
| * open/close, etc). |
| * |
| * @param page the page containing the affected perspective |
| * @param perspective the perspective descriptor |
| * @param changeId one of the <code>CHANGE_*</code> constants on |
| * IWorkbenchPage |
| */ |
| void perspectiveChanged(IWorkbenchPage page, IPerspectiveDescriptor perspective, String changeId); |
| } |
